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Chukkieegg

Misfire/hesitation

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No can't see much soot but while getting a mcds for daughter on Sunday sitting in  drive through there was smoke rising from the back and see white smoke a few times over last week or so when car is still cold plus I have noticed the bellows on the aos appear to be leaking and I am just putting 2 and 2 together 

When it started running rough on Friday had been idling for a few minutes due to traffic down to one lane

And it seems strange that Tickover was OK tonight 

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Interestingly just found receipt for aos it was replaced in 2007 no idea at what milage though so it is 12 years old

 

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White smoke or blue/white smoke?  First is water vapour condensing from normal combustion if the air is cool, the other is oil smoke....

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OK so aos replaced today

And oil and filter change done nothing in oil so that's good news

Indy garage plugged in diagnostic and cleared codes misfire on 4,5 and 6

Drove it home and light was back on in about 2 miles but did feel a lot smoother on Tickover 

Beginging to wonder if 02 sensor has failed it was an ebay one but it is a bosch one but not geninune 

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22 minutes ago, Chukkieegg said:

OK so aos replaced today

And oil and filter change done nothing in oil so that's good news

Indy garage plugged in diagnostic and cleared codes misfire on 4,5 and 6

Drove it home and light was back on in about 2 miles but did feel a lot smoother on Tickover 

Beginging to wonder if 02 sensor has failed it was an ebay one but it is a bosch one but not geninune 

For the extra few pounds always go genuine or Bosch its really not worth it as the cheap Chinese sensors, MAF’s etc just dont work as well.

Lee put a genuine Bosh Lamda sensor on mine and its now going like a dream.

Really sorry to hear your still have issues, but if replacing further parts, my advice would be pay the extra and buy genuine.

Good luck

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Well it was bosch paid about £65 from memory 

I was told old sensor was good by exhaust place that changed cat but its stuck in a piece of the cat as it was seized and got no idea how to get it out

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Baron can I just double check the o2 sensor you had replaced was on the left hand bank looking at car from the back bumper? 

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I wasn’t with the car when it was being done but I’m pretty sure it was on the right

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What indi are you using, if they have a proper diagnostic tool it should have flagged the lamda as a fault if that’s the issue, it was very obvious when I was shown the screen what the faults were

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Not a porsche indy just a general indy vw trained and used for years and always been good to me font rip me off and do really good work

But may have to book a day off work and get to a porsche indy 

 

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9 minutes ago, Chukkieegg said:

Not a porsche indy just a general indy vw trained and used for years and always been good to me font rip me off and do really good work

But may have to book a day off work and get to a porsche indy 

 

I would highly recommend going to a Porsche specialist as demonstrated by my issues, you will save hours in potential failed diagnosis and ultimately ££££££

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OK got called back to work friday 

New security firm having issues with alarm system anyhow drive it to work then cleared codes put done fuel in and drove home with a slightly sprites drive so far no engine check light and runs loads better think I will monitor for a few days so hopefully going the right way

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1 hour ago, Chukkieegg said:

OK got called back to work friday 

New security firm having issues with alarm system anyhow drive it to work then cleared codes put done fuel in and drove home with a slightly sprites drive so far no engine check light and runs loads better think I will monitor for a few days so hopefully going the right way

I just had a play with that dongle I bought and it shows the Lambda outputs

v1U5ROM.png

If you're anywhere near wilmslow, you're welcome to use it. Only cost me £20, so might even be worth buying to have a look before taking a day off work.

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1 hour ago, Nobbie said:

I just had a play with that dongle I bought and it shows the Lambda outputs

v1U5ROM.png

If you're anywhere near wilmslow, you're welcome to use it. Only cost me £20, so might even be worth buying to have a look before taking a day off work.

Well, i must say I’m impressed, i will be buying one to keep in the car

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@Nobbie with this apparently very useful result, can you just repost the product and app details?

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1 hour ago, ½cwt said:

@Nobbie with this apparently very useful result, can you just repost the product and app details?

Streetwise Wireless OBD2 code reader

https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F182928252886

Other cheaper dongles are available, but I have no idea if they work. I bought this one as it was immediately available at ECP for £20 when I needed it. I remember reading something about some dongles not working as well, but can't remember why now. I'm sure if you google it  there will be lots of info about what works.

Car Scanner is the app from the Apple App Store, other free apps are available and may be better/worse.

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On 9/29/2019 at 6:47 PM, Nobbie said:

 

Car Scanner is the app from the Apple App Store, other free apps are available and may be better/worse.

I use car scanner on an android and it's good for reading MAF and lists of other stuff

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Have just been reading through this tread trying to diagnose my 986 2.5 which developed the same codes:

- Random misfire (P0300), P0304, 5, 6. 

Lumpy idle, revs dipping etc.

Started after it had sat for a month or 2. I remembered the last thing I did before putting it away was stripping and cleaning the starter. To get at that I needed to remove the connector piece that goes between the 2 intake manifolds. It is secured on each side using rubber rings with jubilee clips. 
 

Anyway, on the near side one there is a little nipple which should have a vacuum line inserted into it. I had obviously removed this or knocked it out (just push fit). 
 

Whilst sprayed carb cleaner round the engine noticed it was sucking in. Put my finger over it and the idle stabilised. Popped the little vac pipe in and is now running well.

 

 

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Is 20 a blanking plug/grommet? 

Had headers replaced last Monday runs loads better but lumpy Tickover is back so will check grommet when I get back from few days away

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On mine it definitely isnt blanking, it was sucking in a huge amount of air. I then saw a thin tube that wasn’t connected to anything and plugged it in. Snug fit. 
 

On the picture 20 looks like a plug but I think it may be a reducer insert for the pipe to fit. 
 

I have just buttoned mine all up again other wise I would take a photo so show what I mean. I will try and get some time tomorrow. 

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5 minutes ago, Chukkieegg said:

Is 20 a blanking plug/grommet? 

Had headers replaced last Monday runs loads better but lumpy Tickover is back so will check grommet when I get back from few days away

If that's the driver's side (UK), then in a manual car it is a blanking grommet, but it connects to a valve and pipe on Tip cars.

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Hmm, mines a manual. 

Its my first boxster and not had it long. Possible it is a replacement engine from a tip I suppose. Just odd that a little pipe was dangling there just the same size like it was meant to be.  

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